Gold separator



March 18 1930. K l J. v. RAWLINGS 1,750,860

' GOLD SEPARATOR Filed June 8,' 1929 3 sheets-Shen 1 in? .v

ATTORNEY March 1.8, 1930. J. v'. RAwLlNGs 1,750,860

' GOLD sEPAR-A'on,

Filed June 8. -1929 s sheets-sheet 2 Jay. 2.l

INVENTOR Jack V'Ra v /ingu:

TToRNEY J. V. RAWLINGS ",lmh 1s, 1930.

GOLD SEPARATOR Filed June 8, 1929 3 Sheets-Sheet 3 INVENTOR ATTORNEY vPatented Mar. 18, 1930 UNITED STAT-Es PATENT Fig-ca SEATTLE, WASHINGTON, AssIGNoR To; EDMON'D M. 'BEUs, 'rRUsTEEyoE soDA srames, IDAHO v vcron-D 'SEPARATO'R Application filed .Tune 8, 1929. Serial No. 369,458.

' VThis invention relates to ore separators, particularly thoseV pertaining to the separa- 'tion Yof gold where the ore is pulverized and has been sluiced E with water. v

f The principal'obj ect of the'invention is t0 lprovide a separator which will separate the V goldfrom the mixture and will also separate out the lead, silver, etc., from thetailings.

; `A furtherobject of the invention is theVV 1-provision of means vfor collectingthese ores separately ings.v l

'i' YA further object i's'to provide a means for 'collecting the gold vup to a predetermined and foralso passing off the tailweight and then automatically discharging i' Figure 2-is a'sectional view taken'upon the line 2-2of Figure 1.v i "Y f :Figure3 (is afse'ctional view taken at line 3&3 of Figure 1.` s v Y 1 This device consists of three bowls 'fastened togetherso as to form one unit." The innerbowl is providedwith a 'series of horilziontalrililes 2.l nThe upper section `3 of the bowl ares out more rapidly, said section beingl provided with largerriiiies 4 and 5 alternating with series of holesV 6 and L7 The lower part of the bowl has a hub 8 whlchhas a series of holes 9 rand a bottom outlet'lO.

l Rigidly attached'to the hub'8 isa'hollow shaft 11,',thetop of the shaft being provided with a bevel gear 12 meshing with-a bevel pinion 13. The'fbevel pinion is fastened to a shaft 14 which is coupled to the motor 15by a coupling 16.4 Another Vbowl 17 provided withfhoriz'ontal rili'les 18 is rigidly attached to the "bowl 1 by means of bolts 19.- The Vbottom of this bowl is provided with a series of copper tubes, as shown at 20. "Secured by screws 22 tothe top of this bowl is Ya baille ring 21, the edge of the ring` ,cjove'ringthe outlets of theholes: 6,"Whei'eby the second A third bowl 23 is attached bowl 17 receives the contentsof bowlr 1 discharged through opening 6.

t0l an lextension 24 of the bowl lby means of bolts 25. This bowl is provided with-a seresofvertical. riitles 26 and horizontal riiiles 27. The bottom is provided with a'series of holes 28 (see 'Figures 1 and 3).V Attached to the hub" Sof the bowll is a distributing plate 29,l provided with concentric riftles 30. The hole 10 of Athel bowl 1 is normally held closed by a vball 31 connected to a rod 32, which is urgedupwardly'by the right hand end of a lever 33 'which is pivoted to a'` bracket 34 at the point35. K The left hand end of the'lever 33 is provided f with a series of'weights36,the number of whichmay be varied to getthe required lift ofthe'ball31.VIV j f. y

The lthreebowls as one unit with the shaft 11are rotatably mounted at 37 and 38 in the f' 70 frame 41'of themachine. i 42' is a bracket motor 15. 43 is a hopper,preferablyl' of sheet metal, surrounding the bowls fand ,Sen-

cured `to the bottom plate- 4O` 44l is a pan mounted below the bowl 23 and 'resting onthe top and-bottom covers 39l and 40of the main i attachedfto the frame 41 yfor supporting the cover 40. '44a is another pan which-isifsus- The pan is provided withgfa pin 45 ,which L pended from the lower side of the cover'v40. f

va hole 59throughwhichA a lock `51 can'be passedY to secure the pan 44El to the bottornof Y the machine. 52 is a pipe connected tofthe pan 44, `and'r 53 vis another` pipe. passing through the plate 40, terminating in hopper 43. 54 is a feed pipe surrounding the shaft 11 and secured to the bottom ofthe top plate 39. 55 is another tube provided with ahopper 56. vThis tube passes through the cover l 39 and empties into the feed pipe; 54.

` The/operation is as follows: l

the tube54'down onto the plate 29. The miature of ore landl water is lnow agitated and" Y 'The pulverizedU ireand wateris'fed into i l vthe hopperf, through the tube fandinto f other hoppers receivin the retained contents n of the inner and outer owls.

6. A centrifugal separator comprising an inner bowl having a ared upper section, said section having two series of holes, horizontal riiiies formed on the lower section, a delivery tube extending into said bowl, areceiving plate having concentric riiiles carried by the inner bowl directly under the delivery tube, an intermediate bowl carried by the inner bowl receiving the'contents of the inner bowl discharged through `one series of holes, a cover plate for the intermediate bowl, an outer bowl, discharge tubes extending from the intermediate bowl into the outer bowl,

horizontal riilies formed'on the upper sectionv of the outer bowl, vertical riliies formed on the lower section of the outer bowl, anvouter hopper entirely surrounding the bowls, other hoppers receiving the retained contents of the inner and outer bowls, and means for automatically discharging a predetermined weight of gold from the inner bowl into its hopper.

In testimony whereof I afHx my signature.

JACK V. RAWLINGS. 

